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Daikyo Seiko, Ltd.

USPTO Granted Patents = 125

% Expired Patents = 15.2

CIPO Patents = 7

EPO Patents = 34

Trademarks = 17

Forward Citations = 2,764

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37 inventors (with patents filed for the assignee):

Hideaki Kawamura (57 out of 170 patents)

Morihiro Sudo (25 out of 32 patents)

Masamichi Sudo (20 out of 21 patents)

4. Hiroshi Togashi (16 out of 16 patents)

5. Takayuki Yoshida (13 out of 14 patents)

6. Yasushi Kawachi (5 out of 11 patents)

7. Nobuo Sudo (5 out of 5 patents)

8. Scott Young (3 out of 4 patents)

9. Tsuyoshi Koshidaka (3 out of 3 patents)

10. Kouichi Asai (3 out of 12 patents)

11. Tomoyasu Muraki (3 out of 3 patents)

12. Daisuke Tsukiji (3 out of 3 patents)

13. Takashi Uemura (2 out of 2 patents)

14. Haruo Miyata (2 out of 2 patents)

15. Ricky Yeager (2 out of 3 patents)

Core Competencies:

Syringe Barrel

Plastic Cap

Medical Container

Drug Transfer Device

Sealing Device

Vial Cap

Sterilization Tray

Injector Piston Nest

Plunger Rod

Vacuum Package System

Rubber Plug

Microtube

125 patents: Sort by Forward Citations

1. 12514786 - Transport container (2026-01-06),

2. 12514784 - Plastic cap and closed system drug transfer device (2026-01-06),

3. D1107225 - Syringe barrel with needle (2025-12-23),

4. 11925490 - Packaged medical device (2024-03-12),

5. D976107 - Plastic cover (2023-01-24),

6. 11547518 - Packaged medical device (2023-01-10),

7. 11540893 - Container (2023-01-03),

8. 11540892 - Packaged medical device and method for manufacturing packaged medical device (2023-01-03),

9. D970341 - Plastic cover (2022-11-22),

10. 11179296 - Container holding member and medical container set (2021-11-23),

11. 11161671 - Medical device container (2021-11-02),

12. 10994903 - Plastic cap and production method thereof (2021-05-04),

13. 10918784 - Holding member and packaging structure of chemical container parts (2021-02-16),

14. D907494 - Plastic cover (2021-01-12),

15. D907493 - Plastic cover (2021-01-12),

Daikyo Seiko, Ltd. is a leading manufacturing company specializing in precision and high-performance parts. With over 50 years of experience, we have established ourselves as a trusted provider of innovative solutions for various industries. Our expertise lies in designing, producing, and supplying precision components for automotive, aerospace, electronics, and medical sectors. Through advanced technology and strict quality control, we ensure the highest level of reliability and precision in our products. Visit our website for more information and to explore our extensive range of products and services.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

Daikyo Seiko, Ltd.

125 Patents

#485 in Tokyo

#984 in Japan

#6,396 in the World

Daikyo Seiko, Ltd.

Forward Citations = 2,764

37 inventors:

Hideaki Kawamura (57 out of 170 patents)

Morihiro Sudo (25 out of 32 patents)

Masamichi Sudo (20 out of 21 patents)

4. Hiroshi Togashi (16 out of 16 patents)

5. Takayuki Yoshida (13 out of 14 patents)

Please report any incorrect information to [email protected]

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